Of these, vpFREE2 considers 2 games "good" or "playable",
under typical circumstances, with a return of at least 99%, including JW5 (FP).
At least those 2 games may appear in the casino pages.

Other, lower returning variants may also appear if they are "progressive" or are the best games in the casino.
Unfortunately, there are no commonly found variations of JW5 with a return of at least 100%.

You might also want to check out the following related games:DJW, JW, JW2, JWD, JWA